Abstract : This research examined performance on the land navigation field test administered in the Special Forces Qualification Course (SFQC) as a function of three sets of possible predictors: (a) Project A paper and pencil tests of spatial ability (Map, Maze, and Orientation), (b) performance on the military orienteering events in the Special Forces Assessment and Selection program (SFAS), and (c) measures of intelligence and physical fitness obtained in SFAS. Our multivariate analyses showed that SFQC trainees who passed the land navigation test on the first try had significantly higher scores on the Map test than those who did not. We also found that those who failed land navigation had significantly lower ratings on orienteering Event IV (the last and longest event in SFAS) than did those who passed land navigation either on their first try or on a retest. Analyses of hypothetical cut-scores on the Map test were examined to provide information on the potential utility of this measure as a screening tool. The benefits (i.e., higher success rates when the cut-offs were used) were marginal because even very lenient cut-offs would exclude many students with the potential to pass land navigation The Map test and military orienteering scores might, however, be useful as diagnostic tools. Students with low scores could be advised that they are likely to be at a disadvantage in the SFQC and instructed to improve their map reading and navigation skills before attending For purposes of selection screening, we are planning research with another Project A spatial test, Assembling Objects, that has shown great promise in previous settings